CYC E-Bike Mid-Drive Freewheel 2.0 Upgrade for X1 Pro Gen 4/3 & X1 Stealth Gen 3 or motor controller to monitor

or motor controller to monitor rotational speed

All protection make it long life and safe: over/under voltage

select a suitable replacement solution to ensure the stability and reliability of the equipment performance

1x X1 Pro Gen 4 motor

Designed with an ergonomic

CYC E-Bike Mid-Drive Freewheel 2.0 Upgrade for X1 Pro Gen 4/3 & X1 Stealth Gen 3 or motor controller to monitorPLEASE NOTE THIS FREEWHEEL IS ONLY COMPATIBLE WITH 219H SPROCKET 2. 0 VERSION. The Freewheel 2. 0 is designed to upgrade your CYC e bike crankset, providing smooth and reliable drivetrain performance. When paired with the 219H Chain Sprocket 2. 0, it ensures complete drivetrain enhancement for X1 Pro and X1 Stealth kits. Compatibility X1 Pro Gen 4 X1 Pro Gen 3 X1 Stealth Gen 3 X1 Pro and X1 Stealth Gen 1 & Gen 2 (with Freewheel 2. 0 upgrade)